Write the rules for sign convention.

Explain the cartesian sign convention for mirrors.

What are the heat (q) sign conventions when heat is transferred from the surroundings to the system and that transferred from system to the surrounding?

Observe the following pattern. Count the number of line segments in each shape. Write the rule for the above pattern.

What are the 'DeltaH' sign conventions for exothermic and endothermic reactions?

What are the sign conventions of the work done on the system and work done by the system?